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Application of Lining Defect Prevention Techniques in Railway Tunnels in Operation
(1 China Railway Kunming Group Co., Ltd, KunMing 650216; 2 China State Railway Group Co., Ltd., Beijing, 100844; 3 BeijingHebei Co., Ltd. of Beijing-Shenyang Railway Passenger Dedicated Line, Beijing 100166)
Abstract The defects of cavity at crown, lining cracking and chip off-falling, water seepage and leakage and so on in operated railways will endanger the safety of railway operation. The damage patterns of lining cavity and the advantages and disadvantages of the common remediation methods for the lining defects are analyzed in respects of theory and damage model. The prevention techniques by grouting with mould for lining defects are proposed to realize reinforcement and rehabilitation aiming at the lining defects of certain operated railway tunnel. The application effect shows that lining integrity is good, with the characteristics of short construction period and high efficiency.
Abstract：
The defects of cavity at crown, lining cracking and chip off-falling, water seepage and leakage and so on in operated railways will endanger the safety of railway operation. The damage patterns of lining cavity and the advantages and disadvantages of the common remediation methods for the lining defects are analyzed in respects of theory and damage model. The prevention techniques by grouting with mould for lining defects are proposed to realize reinforcement and rehabilitation aiming at the lining defects of certain operated railway tunnel. The application effect shows that lining integrity is good, with the characteristics of short construction period and high efficiency.
LIU Jie1 DONG Wu2 GONG Chengming3
.Application of Lining Defect Prevention Techniques in Railway Tunnels in Operation[J] MODERN TUNNELLING TECHNOLOGY, 2019,V56(6): 157-161
2019, Vol. 56 